The sub-20,000 market today has phones with full HD displays, flagship-like performance, good cameras and with 3GB of RAM. You have a lot of options to choose from, based on your priorities. However, if you are still confused and want to get the best performers, this is the list you should refer to. Here are the best phones under Rs. 20,000 with 3GB RAM or more, offering the best performance for their price.